USRE2E - Improvement in machines for cutting wood and other screws - Google Patents

Description

sssr AVAILABLE COPY I Q w. KEANE. I

Swaging Screws. v No. 2. Reissued April 16, 1838.

BEST AVAILABLE co y UNITED STATES PATENT OFFICE.-

THADDEUS SELLICK, or H'AVERSTRAW, ADMINISTRATOR or Wig. KEANE,

' or MONROE, NEW YORI IMPROVEMENT IN MACHINES FOR CUTTING WOOD AND OTHER SCREWSJ Spccilication fanning part of Letters Patent dated Fcbruarylli, 1836; Reissue No. 2, dated April 10, 1838.

To all whom it may concern: B is a box of cast-iron,which may seven it known that \VILLIAM IQSANE, of the inches high and six inches in diameter; The town of Monroe, in the county of Orange and main use of this is to contain a mixture of oil.

- the State of New York, was the inventor of a and water, soapsuds, or other suitable lubrinew and useful Improvement in the Machine eating fluid which will keep the dies and the for Making Screws, principally of the kind. blankconstantly lubricated during the operadeuominated \Vood-Screws; and I do heretion of cutting, and thus efl'eetually prevent -.by declare that the following is a full and ex-' the heating and wearing of theiparts,while it act description thereof. insures the smooth cutting of the screw. The In the accompanying drawi ngs,'A A,Figure shaft D may be two feetlong and one inch and 1, represent the frame of the machine which a half in diameter. It is bored through its is to support the revolving spindles and other whole leugth, so as to. receive a sliding rod, parts of the apparatus. The threads are to be F F, about three-fourths of an inch in diamecut by means of two circular dies which reter, around which it is to revolve freely. j volve upou suitable axes with their periph- G G are steps'attached to the frame A, upon eries' nearly in contact with each other. A which the shaft D revolves, being perforated semicircular or other suitably-formed groove also to allow the sliding rod to pass' thr0ugh is made in the peripheryof each die, and upon it. This sliding rod is attached to an indethese the thread of the screw is cut, by which pendent sliding frame, the upper and lower a. corresponding thread is to be formed upon bars of which, 0 and d, are connected by the the blank which is to be made into a woodvertical rods e e. The sliding rod F does-not screw. A tool very similar in form to this revolve with the spindle D, through which it part of my instrument is used by jewelers and passes; but it has an independent sliding mo- I other small workers in metal'for the purpose tion through said shaft, and also through the of milling or forming thread-likeoruanients lower bar,'d, of the sliding frame. -It hasa' spirally upon gold wire and other articles. hub, f, fastened upon it by means of a tight- In Fi 2 two such dies are represented as staeningscrew, from which proceed the guidetioned upon the under sideof a circular plate arms g g, which'slide upon the rods e e and of iron which forlns'the cover of a revolving prevent the rod F from turning.

x, B, Figs. land 3, tO' be presently de- H is aspring which bears'upon the bar d scribed. a and upon the hub f, allowing the rod to be a a are, the revolving dies, which "will vary forced down, but reacting against the hub, so insize according to the size of the screw which as t5 tend to' raise it until it comes into con- I they are to cut; but for. a screw of a medium tact with the step G. size they maybe about an inch and three- On the upper end of the slide-rodF there is fourths iudiameter'and half an inch thick. a steel screw, h, the thread of which fits that 'Dies of this size mayhave their shafts b b of the circular dies a a, and it will be seen,

half an inch in diameter and two and a half therefore, that i'f'this steel screw is raised, so

inches'lon'g, revolving'on centers adjusted as to stand between the dies, the revolution. by screws. he shafts are placed parallel of the box B,in which they are containedmill, to each other, as shown in the drawings A by the aid of the screw, cause themto revolve greater number of such dies may be usedas on their axes, andthat a like eflect would be three, for example-in wh Lch their axes produced by raising orloweringthe sliding rod not be parallel toieach other. The iron-p while the-box B is at'rest. The cap or cover Ois shown in place in Fig. 1, forming the C of the box B has a perforation through its cover-of the box B, whlch'revolves with the. center, which is immediatelyover the grooves shalt D5, upon which it is firmly fixed, E E be-' in the dies, and through which the blanks in whirls fort-h driving-bands from 'anysuitto, be out are fed to them. The blanks which abepow'er. have been prepared by being'headed and notched are into this opening," so the point of the intended screw will rest upon the upper end of the 'steel'rsc'rew h, while a notch.- This may be efleeted in various ways;

but that which is deemed oneof the most convenient is the following, as shown in the-draw lugs, the detached parts having the same letterson them to designate the same partsas those used in the principal figures; The rod j is the screw-holder which passes through the bar 0, and is afiixed in its place byia tighteiiing-screw,- by which it is adapted to screws of various lengths. A leather strap j, one endof-whichismade fast to the'bar c of the sliding frame, has itsv Opposite end attached to and passing round the circular hub k,wh ich -is made' to turn by means of the handle Z.

When these handles are forced down,the [sliding frame, and consequently the screw-holder, will 'be raised; while the spring H: tends to bring it back to-its former. position when al lowed todo so. I The iron fixtures m m, at-

tached to the frame A A, sustain the hub k and its appendages.- If square-headed screws are to be cut or other forms be required, the

holding apparatus must be adapted thereto.-

Instead of the spring H H,weighted levers have sometimes been used, and they have been variously modified, so as to produce the BEST AVAILABLE COPY same effect, and they answer the purpose perfectly well; but being more complicated than the plan above: described, they are not preferred; nor doesthe claim to invention rest in any degree upon one or the other of these modes of procedure, they being deemed equiva1ents.'

\Vhat is claimed as new in the above-described machine, and as the invention of the within-named WILLIAM KEANE, is

1. The manner-of cutting the threads upon the screws by means of machinery constructed andcombinedtogether substantially in the manner herein set forththat is to say, having two or more revolvingcircular dies with the required thread out 'upon their peripheries, and so placed that they may revolve vertically on their axes, and be carried round horizontally with and by means of a revolv ing box, in which is contained a suitable lubricating-fluid, as described.

2. The general construction and arrangement of the respective parts of the said machine, by means of which the blank is held while being cut, and liberated when cut, and again fed with a new blank, together with such variations of said construction and arrangement as shall not essentially alter its character or mode of operation.

' THADDEUS SELLICK.

\Vitnesses:

JAMES MILLER, RICHARD GURNEE.

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